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Market Failure and Government Intervention MCQs with answers for focused revision.

Use this practice set to test whether you can identify externalities, public goods, monopoly-based inefficiency, information failure, merit and demerit goods, and the main policy tools used by government to correct these problems. Attempt the full set first, then use the explanations to tighten weak areas.

Foundation Check

Build recall on core terms and definitions before moving into application.

Question 01
Market failure occurs when:
Market failure means the market does not allocate resources in a socially efficient way.
Question 02
Externality refers to:
An externality is an effect of an economic activity on someone not directly involved in the transaction.
Question 03
Negative externality example:
Pollution imposes external costs on others, so it is a classic negative externality.
Question 04
Positive externality example:
Education creates benefits beyond the individual learner, so it is a positive externality.
Question 05
Public goods are:
Public goods are consumed jointly and people cannot easily be excluded from using them.
Question 06
Free rider problem arises in:
Free riding mainly appears in public goods because people can benefit without paying.
Question 07
Which is a merit good?
Education is treated as a merit good because it gives social as well as private benefit.
Question 08
Demerit goods are:
Demerit goods are goods whose consumption harms the consumer or society.
Question 09
Government intervention is needed due to:
The main economic reason for intervention is market failure.
Question 10
Monopoly leads to:
A monopoly often restricts output below the socially efficient level.
Question 11
Information failure means:
Information failure exists when buyers or sellers do not have proper information for sound decisions.
Question 12
Price mechanism fails in:
The price mechanism breaks down in broader cases of market failure, including monopoly.
Question 13
External cost is also called:
External cost becomes part of social cost because society bears it beyond the producer or consumer.
Question 14
Subsidy is used to:
Governments use subsidies to encourage goods or activities with social benefit.
Question 15
Tax is used to:
Taxes can discourage activities that create social costs, such as pollution or smoking.
Question 16
Which is NOT a cause of market failure?
Perfect information supports efficient markets; it is not a cause of market failure.
Question 17
Government provides public goods because:
Private firms usually underprovide public goods because exclusion is not practical and free riding is common.

Concept Application

Work through externalities, public goods, and intervention tools in slightly broader situations.

Question 18
Negative externality leads to:
When social cost is higher than private cost, the market tends to overproduce.
Question 19
Positive externality leads to:
When social benefit is higher than private benefit, the market tends to underproduce.
Question 20
Social cost =
Social cost includes both private cost and external cost.
Question 21
Social benefit =
Social benefit includes private benefit plus external benefit.
Question 22
Which policy reduces pollution?
A corrective tax raises the private cost of polluting activities and helps reduce them.
Question 23
Merit goods are:
Merit goods are often underconsumed in free markets because people undervalue their wider benefits.
Question 24
Demerit goods are:
Demerit goods are often overconsumed because their full social cost is ignored.
Question 25
Government corrects externalities by:
Taxes and subsidies are standard tools used to internalise external costs and benefits.
Question 26
Which is NOT public good characteristic?
Excludability is a feature of private goods, not public goods.
Question 27
Free rider problem causes:
Because many users do not pay, public goods are often supplied below the socially desirable level.
Question 28
Market failure in monopoly due to:
In monopoly, price exceeds marginal cost, showing allocative inefficiency.
Question 29
Information asymmetry leads to:
When one side knows much more than the other, market outcomes can become inefficient.
Question 30
Which is corrective tax?
A Pigouvian tax is designed to correct a negative externality.
Question 31
Government regulation includes:
Regulation can include legal rules, taxes, and direct controls depending on the issue.
Question 32
External benefit leads to:
External benefits raise total welfare beyond the private gain received by the direct consumer.
Question 33
Which is example of public good?
Road lighting is non-rival and non-excludable for users in the area.
Question 34
Private goods are:
Private goods are rival in consumption and people can be excluded from using them.

Advanced Practice

Use this section to test whether you can connect theory with welfare, efficiency, and corrective policy logic.

Question 35
Market fails when:
A key sign of market failure is divergence between private and social costs or benefits.
Question 36
In negative externality:
Negative externalities mean society bears extra cost beyond the producer’s private cost.
Question 37
In positive externality:
Positive externalities mean the total benefit to society is greater than the private benefit.
Question 38
Optimal output occurs where:
Social efficiency is achieved where marginal social cost equals marginal social benefit.
Question 39
Deadweight loss arises due to:
Deadweight loss is the loss of welfare caused by inefficient allocation.
Question 40
Monopoly causes welfare loss because:
Monopoly reduces output below the socially efficient level, creating welfare loss.
Question 41
Which is regulatory intervention?
A law is a direct regulatory tool used by government.
Question 42
Which reduces positive externality gap?
A subsidy encourages more consumption or production of goods with positive externalities.
Question 43
Which reduces negative externality gap?
A tax helps make private decision-makers account for external cost.
Question 44
Merit goods justify:
Governments often provide or support merit goods because markets underprovide them.
Question 45
Which is NOT intervention method?
Inflation is not a direct policy tool for correcting market failure.
Question 46
Public goods problem arises due to:
The central problem with public goods is free riding.
Question 47
Government failure means:
Government failure means intervention itself produces poor or inefficient results.
Question 48
Excess consumption of demerit goods causes:
When demerit goods are overconsumed, social welfare falls.
Question 49
Which policy ensures efficient allocation?
Efficiency improves when external costs and benefits are built into market decisions.
Question 50
Internalising externality means:
Internalising an externality means bringing the outside cost or benefit into the market price or decision.

Test Result

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Why this MCQ page matters

Market Failure and Government Intervention MCQs with answers for clear chapter-wise revision.

Use this page to check whether you can distinguish market failure from normal market adjustment, identify when private cost differs from social cost, and match the right government response to the right economic problem.

  • Chapter-wise MCQs aligned to Public Finance syllabus
  • Instant checking with explanations after submission
  • Useful for revision, internal tests, and self-practice
  • Best used after reading the notes for the same topic
Read Notes First
Better practice flow

Finish the full test once, then revise only the concepts you missed.

Students usually improve faster when they first attempt the complete chapter in one sitting, then use the answer review to isolate weak areas like externalities, public goods, merit goods, monopoly welfare loss, and corrective taxes or subsidies.

Related notes to continue revision